baber/WOPTO huggingface dataset:
Patent GB-1179610-A (GB)
Title: Improvements in or relating to Servo Assisted Vehicle Braking Systems
Inventor: HODKIN RICHARD KEITH
IPC: B60T7/12
Filed: 1966-02-07
Abstract: 1,179,610. Fluid pressure braking system. ROOTES MOTORS Ltd. 5 May, 1967 [7 Feb., 1966], No. 5324/66. Heading F2F. A servo-assisted braking system for a motor vehicle comprises a means to detect movement of the vehicle in one direction, e.g. rearwardly, and means operable in response to detection of such movement by the detection means to operate the system automatically to apply the brake and means operable at will to render the operating means inoperative. The operable means may comprise a solenoid operated valve incorporated into a pipe 36, which valve, when the vehicle moves rearwardly, allows air at atmospheric pressure to act on a piston 20 of a vacuum suspended servomotor. The detection means may comprise a frictionally driven, electrical contact arm which abuts a stop when the vehicle is moving in a forward direction and which completes an electric circuit by abutting a stop and electrical contact assembly when the vehicle is moving rearwardly (Fig. 4, not shown). The means operable at will comprises an immobilizing switch which prevents actuation of the solenoid operated valve when the vehicle moves rearwardly, the switch being mounted on the hand-brake button or on the vehicle dashboard. The servomotor is connected to the vehicle engine inlet manifold (Fig. 1, not shown) there being a vacuum tent interposed therebetween. Hydraulic fluid from a master cylinder actuates a control piston 21 to seat or unseat atmospheric or vacuum valves 28, 29.
Patent GB-766967-A (GB)
Title: Connecting arrangement for the draw hook of a tug or the like
IPC: B63B21/56
Filed: 1955-02-22
Abstract: 766,967. Towing ships. PRICHARD M. HESKETH-. (Akt.-Ges. Weser). Feb. 22, 1955, No. 5345/55. Class 114. An arrangement for attaching a draw hook to the hull of a tug comprises a draw bar D pivotally mounted at E in the central plane of the boat, an arcuate horizontal guide F comprising two members F<SP>1</SP>, F<SP>2</SP> that provide a guide channel G in which run two opposed rollers H<SP>1</SP>, H<SP>2</SP> connected together by an axle J pivotally connected to the draw bar, a link L mounted on the draw bar at L<SP>1</SP> and capable of vertical angularmovement, a second link M rotatably mounted in the eye of the first link so as to be capable of horizontal angular movement, and a double link N pivotally connected at M<SP>1</SP> to said second link for receiving the draw hook O, the length of the link N being such that when the hook is transverse to the centre line of the boat it projects to the required extent.
Patent GB-1501386-A (GB)
Title: Plugs for lockable push-pull electrical connectors
IPC: H01R13/627
Filed: 1974-02-06
Abstract: 1501386 Two-part couplings BUNKER RAMO CORP 23 Jan 1975 [6 Feb 1974] 05508/74 Heading H2E A plug 10 which can be fastened in engagement with a socket 40 comprises at least one resilient tine 21, 22 for engaging a stud 41 on the socket and a locking member 15 movable between a release and a locking position on the plug body and having a projection 62, 63 which in the locking position engages a free end of the tine and locks it in engagement with the stud. The plug body comprises an annular collar 14 to which is secured a plastics ring 18 having three pairs (only one visible in Fig. 1) of resilient tines 21, 22 spaced around its circumference. Mounted for movement against a spring 24 within a nose 12 of the plug body is a second plastics ring 20 comprising teeth 31, (32, 33, Fig. 6, not shown) which project and slide between respective tines 21, 22. In use, the nose 12 is inserted into the socket with splines 13 engaging keyways (not shown) and the ring 20 being pushed back against the spring 24 and the teeth 31, (32, 33) moving back from the free end of the tines 22, 22 to adjacent their roots. The tubular locking member 15 is then moved to the left as seen in Fig. 1 such that inwardly projecting pegs 62, 63 on the locking member engage the tines and lock them around respective studs 41. In a modification only one tine 21 is used to engage each stud 41, the peg 63 bearing against the stud opposite to where it is engaged. Detents 51, 52, (53) are optionally present on the ring 18 to engage grooves 66, 67 in the locking member.
Patent GB-1150188-A (GB)
Title: Method for Recovering Substantially Pure Nickel from Ammoniacal Nickel Ammonium Carbonate Leach Solutions.
IPC: C22B23/00
Filed: 1968-02-02
Abstract: 1,150,188. Producing nickel. SHERRITT GORDON MINES Ltd. Feb. 2, 1968 [Feb. 15, 1967], No.5509/68. Headings C7D. Ammoniacal ammonium carbonate leach liquors containing Ni, S and other impurities are treated to recover substantially pure Ni powder as follows;- (a) The solution is boiled to drive off CO 2  and NH 3  to precipitate basic nickel carbonate (b) The precipitate is removed from the solution and then redissolved in substantially pure aqueous ammoniacal ammonium carbonate. (c) The solution is freed from insoluble impurities and boiled to precipitate at least some basic nickel carbonate. (d) The slurry is then treated with a free oxygen containing gas with an oxygen partial pressure above 5 p.s.i. at 65-260‹C. for a sufficient time to oxidize the impurity S content to SO 4 ". (e) Finally the slurry is reduced with H 2  at elevated temperature and pressure (e.g. at 80- 315‹C. with a partial pressure of H 2  of 100-500 p.s.i.). If the S content of the solution is above 0À1% it is preferred to treat the precipitated basic nickel carbonate of either precipitation with a sodium compound which will react with SO 4  " to form Na 2 SO 4  (e.g. hydroxide, carbonate or bicarbonate) either by adding the compound to the slurry or after removing the liquid therefrom by washing with a solution of the compound. Sub-micron Ni seed powder and/or a catalyst such as anthroquinone may be included in the slurry to be reduced.
Patent GB-943172-A (GB)
Title: Terpolymers
IPC: C08F220/12
Filed: 1962-02-13
Abstract: A terpolymer comprises 40 to 90 parts vinyl pyrrolidine, 2 to 20 parts vinyl stearate and 8 to 58 parts of vinyl acetate or an acrylic ester. Specified esters are the ethyl, methyl and butyl esters.  The monomers are polymerized in the presence of a solvent and a catalyst, e.g. azobisisobutyronitrile Ethanol is a specified solvent.
Patent GB-491378-A (GB)
Title: Electrical route indicator
IPC: G09B29/10
Filed: 1937-02-24
Abstract: 491,378. Electric signalling systems. COMPAGNIE DU CHEMIN DE FER METROPOLITAIN DE PARIS. Feb. 24, 1937, Nos. 5557 and 5558. Convention dates, Feb. 29, 1936 and Jan. 18, 1937. [Class 40 (i)] [Also in Group XXXV] An electrical route-indicator in two or three dimensions, for example a transport system, building, or the like, consists of a plan or model in which the available services or routes are traced in a network of single leads, Fig. 1, including lamps or other display devices in series, the leads of the network being connected at change points and being interrupted at selected points such as C1, C2 &c. to which itineraries of equal length, time or convenience are available from a fixed starting point O, so that, on the application of a suitable voltage between the starting point O and any selected destination such as P, only the shortest, quickest or most convenient itinerary is indicated by the display devices. In any map, Fig. 1, the interruption points C1, C2 &c. are those to which there are two alternative routes from the starting point O which are of equal convenience &c. In such an arrangement, Fig. 3, the starting point O is connected through a source of supply S to a control panel carrying push-buttons or key operated switches, one for each destination, which control the application of voltage to any of the selected destinations listed on the panel M. In view of the fact that the itineraries may be of different lengths having more or fewer display devices in series, the source S should be one giving constant current such as a high leakage transformer. Alternatively a tapped transformer may be used, the tappings of which are connected to the destinations requiring the corresponding voltage, through the control switches on the panel M. In a further modification, a tapped series resistance may be used, having its tappings connected to the circuits requiring the corresponding voltage. In order that two routes may not be energized simultaneously, the switches on the panel M may be controlled by a single master key or plug. Alternatively, Fig. 6, each spring-returned press button B1, B2, B3 on the control panel may control a relay R1, R2, R3 all of which are supplied from a constant current or high resistance source so that, if two or more of the buttons B1, B2, &c., are depressed, the current is not sufficient to operate any of the relays R1, R2, R3. Each of these relays has a contact such as r1 controlling the corresponding load circuit f and including a series holding coil on the corresponding relay R1, R2 or R3. A time controlled switch, not shown, is actuated by the current in the common return lead r which immediately cuts off the supply to the relays R1, R2, R3 and, after a predetermined time, opens the circuit of the conductor r momentarily so as to de-energize the holding coil of the operated relay R1, R2 or R3. The switch then re-establishes the supply to the relay windings.
Patent GB-1455371-A (GB)
Title: Vestibule in combination with air curtain door
IPC: F24F9/00
Filed: 1974-02-07
Abstract: 1455371 Air curtains in vestibules DISCO ENG Inc 7 Feb 1974 05728/74 Heading F4V A vestibule inside or, as shown, outside a restaurant or store comprises an air heating or cooling unit 32 for delivering air to at least one discharge duet having a longitudinally extending slot to form an air curtain across an external access opening 22, a folding door 24 in opening 22 and hinged or slidable doors 28 in an interior access opening, doors 28 including louvres for passage of air from the vestibule to the interior of the building irrespective of the position of doors 28 to pressurise the building to prevent ingress of dust or climatic influences. The door 24 is actuated by an electric motor via gears and a screw (24d, Fig. 3A). A slotted air curtain forming duct is located on one or each side of or above the opening 22, and forms part of an air discharging unit fixed to the underside of the unit 32. Alternatively, the unit 32 communicates with hollow door frame members having air outlet slots. Unit 32 includes refrigerating means or a gas or oil fired heater or hot water or steam coils. The air discharging unit includes baffles (78, 80, 82, 84, Figs. 4, 6) for directing air to the slotted duct(s).
Patent GB-1023206-A (GB)
Title: Process for dyeing polyolefins
IPC: D06P3/79
Filed: 1964-02-11
Abstract: Polymers of a -olefins having 2-4 C atoms, especially polypropylene fibres, containing a Werner complex-forming metal are dyed with an aqueous dispersion of a water-insoluble 8-quinolinyl monoazo dye which contains at least one group capable of forming a metal chelate with said metal.  Especially suitable are dyes of the formula <FORM:1023206/D1-D2/1> wherein R is the residue of an azo-coupling component containing at least one group chelatable with said metal linked to a C atom adjacent to the C atom linked to the azo group and wherein the quinoline nucleus may contain non-water-solubilizing substituents.  The polyolefins may contain 0.002-0.5% of said metal, e.g. Ni, Zn, Co, Cu, Cd, Ti, Al, Fe, Zr, Mn and V especially bis(p-alkylphenol)-monosulphide nickel compounds, nickel acetyl-acetonate and inorganic chromium compounds.  The dyes may be applied by heating in a dyebath which may contain surfactants, especially a non-ionic surfactant, preferably at a pH below 5. Examples are given and a number of dyes and components therefor are specified.
Patent GB-1506172-A (GB)
Title: Colour display of geophysical and other data
IPC: G01D9/00
Filed: 1975-02-11
Abstract: 1506172 Recording apparatus SEISCOM DELTA Inc 11 Feb 1975 [11 Feb 1975] 5751/75 Heading G1J [Also in Division G2] A colour display of geophysical or technological data is formed by (a) using digital data to produce a positive image on a film transparency in which the image density at any point indicates the magnitude of a technological parameter and the density increases with the magnitude of the parameter (b) exposing a photo-sensitive polymer layer on a support to the transparency and (c) dusting the unhardened polymer with coloured toner. A multi-coloured display is built up by laminating further photo-sensitive polymer layers to the support, exposing and developing with different: colour toners. The images are dot images produced using a half tone screen, the angle between the support and screen being varied for each exposure to prevent the formation interference patterns.
Patent GB-1066094-A (GB)
Title: Improvements relating to a lead roller for feeding or conveying elastic yarns
IPC: B65H51/06
Filed: 1965-02-10
Abstract: A roller for forwarding newly-spun elastic yarn is provided with a smooth groove on which the yarn runs and which has holes at regular intervals around the periphery of its base, the groove being in section, semi-circular or in the shape of a wedge with a rounded base.  The holes help to drain liquid off the yarn, and it is said that they prevent the yarn sticking to the roller.
Patent GB-1201701-A (GB)
Title: Valve means for high pressure gas containers
Inventor: HYDE ROGER JOHN
IPC: F16K1/30
Filed: 1968-02-06
Abstract: 1,201,701. Pipe couplings. ALUMASC Ltd. 29 April, 1969 [6 Feb., 1968], No. 5893/68. Heading F2G. A valve 4, Fig. 1, which controls an outlet 3 of a high pressure gas container valve assembly, is depressed by either an outlet adaptor 6, Fig. 3, for gas to be withdrawn at low pressure from the container via a reducing valve 5, or a filling adaptor 36, Fig. 6, for filling the container with high pressure gas via a by-pass passage le and non-return valve 39. The outlet adaptor 6 is inserted into the valve assembly, rotated through a small angle, and held in position by hooks (7), Fig. 4 (not shown), engaging pins (9), Fig. 10 (not shown), in the assembly body 1a, with a stem 11 abutting the top of the valve 4, depressing the valve against the action of a spring 14. A valve 30 is lifted from its seat, as shown, under the action of gas pressure in the container, allowing gas to flow from the container, via ports 1d, 31a, 30a to a chamber 24 above the valve 30, until the pressure in the chamber 24 plus action of a spring controlling the valve 30 closes the valve. Depression of the valve 4 causes a spring 15 to depress a diaphragm 19 which depresses a plunger 21 and a valve 22. Movement of the valve 22 allows gas to flow from chamber 24 to a chamber 18 beneath the diaphragm 19 and via a transfer passage 25 to a chamber 12 beneath the valve 4. Gas flows from the chamber 12, past the depressed valve 4, to the outlet 3 and thence through ports (11b), Fig. 2 (not shown), to the adaptor 6. The spring loading of the diaphragm 19 determines the amount of gas flow from chamber 24 to the outlet 3 (and indirectly the flow into the chamber 24) and therefore the gas outlet pressure; the spring loading is varied by stem depth variation in the adaptor 6, which is controlled by a rotatable nut 34 in the adaptor body 35. Insertion of the filling adaptor 36 by a method identical to that for the outlet adaptor 6, aligns ports 41a with a port 2a connected to the by-pass passage 1e. High pressure gas flow from the filling adaptor 36 depresses the non-return valve 39 against a circlip 38, allowing gas to flow into the container. Upon cessation of the gas supply, the non-return valve is closed by the container gas pressure. Leakage of gas from the reducing valve 5 is avoided by seals 3a, 41b. A safety valve (42), Fig. 9 (not shown), incorporating a bursting disc may be provided in the valve assembly body 1a. The transfer passage 25 may be replaced by a bore (17a) in the valve stem 17, with outlet ports (17b), Fig. 11 (not shown), to allow gas to flow from chamber 18 to chamber 12.
Patent GB-1180982-A (GB)
Title: Improvements in or relating to Pulse Duration Modulators
IPC: H03K7/08
Filed: 1967-02-07
Abstract: 1,180,982. Pulse modulation circuits. GATES RADIO CO. 7 Feb., 1967 [10 Feb., 1966], No. 5904/67. Heading H4L. In a pulse duration modulator of the type in which the input signal is compared with a triangular wave trigger signal to operate a switching device, the waveform of the trigger signal is arranged to have a portion of substantially infinite slope at the positive and negative peaks to compensate for the delay in operation of the switching means. As shown, the input audio signal is supplied via terminals 15, 16 to the base of a transistor 28 which is coupled via a Zener diode 33 to a transistor 29 so that when transistor 28 is conducting the transistor 29 is off and vice versa, the switching levels being determined by Zener diodes 33, 42, 43. A square wave trigger signal is applied to terminals 17, 18 and is integrated by capacitor 23 to form a triangular wave which is modified by diodes 24, 27 in a manner to be described. Assuming that the wave is triangular as at 56, Fig. 2, whenever the signal 56 exceeds the audio signal 55 transistor 28 is cut off and transistor 29 conducts and the output voltage at the collector of 29 is reduced to a minimum as at 57. Similarly, when the audio signal exceeds the reference signal 56, the transistor 28 conducts and transistor 29 is cut off so that the output voltage rises to its maximum level 58, thus forming the duration modulated pulses 59. However, when the triangular pulses just exceed the amplitude of the audio signal as at 60, the time interval 61 is much greater than it should be due to delays in the circuit response and to minimize this error the diodes 24, 27 are included. This causes a square waveform to be developed across points 25, 26 which when combined with the triangular wave produces the peaked waveform 72, Fig. 4. The infinitely sloped portion 73 ensures that whenever the triangular wave just exceeds the amplitude of the input signal (shown as of constant amplitude) the time interval 76 correctly indicates the level of the input signal.
Patent GB-589032-A (GB)
Title: Improvements relating to winding apparatus for bobbins or other yarn carriers
IPC: B65H54/00
Filed: 1944-03-31
Abstract: 589,032. Winding bobbins &c. WOODWARD, GROSVENOR, & CO., Ltd., PERRY, F. S., and HUSKINSON, J. A. March 31, 1944, No. 5956. [Classes 120 (ii) and 142 (iv)] Apparatus for winding bobbins or other yarn packages and more particularly for use in spoo setting in the production of pile fabrics comprises one or more portable winder units having power driven rotary driving members. One or more winder units may be flexibly suspended above a creel by springs 21, Fig. 1, mounted or movable carriages 19 on flanged rails 18. Each winder unit body 22 may contain a small electric motor or a motor driven by compressed air or other fluid or the drive may be through a flexible shaft driven by a suitable motor. A spring-pressed switch lever 25 is pivoted to the body 22. When winding flanged bobbins a metal sleeve 30, Fig. 5, is fixed to the driving shaft 24 of a unit and a rubber tube 36 forms a driving connection with the top flange of the bobbin. A centralizing member 33, mounted on ballbearings, engages over the peg supporting the bobbin. For cheeses, a conical member to engage the end of a cheese tube is fitted to the shaft 24. According to the Provisional Specification the driving connection between a bobbin and a winder unit may involve projections and recesses on the engaging parts, or a spring member to be sprung over a flange, or a rubber or like flat disc pressed against a bobbin, or,the end of the winder unit may be in cup form to receive a bobbin flange, a pair of wheels projecting into the cup transmitting drive.
Patent GB-845143-A (GB)
Title: Improvements in guided missiles
Inventor: RANSOM RICHARD SUTTON
IPC: B64C13/24
Filed: 1958-02-25
Abstract: 845,143. Self-propelled missiles. SHORT BROS. & HARLAND Ltd. Feb. 2, 1959 [Feb. 25, 1958], No. 6051/58. Class 9(2). - A missile provided with wings mounted and controlled as in Specification 845,142 is provided with means for locking the wings in a neutral position, the locking means being released only when pressure is applied to the hydraulic fluid in the control system. The inner ends of the stub shafts 101 on which the wings are mounted are provided with lugs 102 which engage slots in flanges 182 of the locking means or sleeve 18. A spring 19 holds the sleeve in the locking position. When a predetermined pressure is set up in the connection 13 as described in Specification 845,142, the disc 14 ruptures and fluid entering the chamber 15 passes through a filter 16 and thrusts the sleeve 18 against a fixed member 20. The lugs 102 are thus freed and passages 22 opened for the supply of fluid to the hydraulic control motors in housing 12. For testing purposes, sleeve 18 can be withdrawn manually by means of a bolt 183.
Patent GB-231843-A (GB)
Title: Improvements in and relating to two-pressure steam generating plants
IPC: F22B13/06
Filed: 1925-03-05
Abstract: 231,843. Schmidt'sche Heissdampf- Ges. April 2, 1924, [Convention date]. Compound and composite boilers; steam and water drums.-In a locomotive or like boiler having the firebox constructed as a high-pressure boiler and the barrel as a low-pressure boiler, the upper drum of the firebox is extended longitudinally beyond the firebox. The drum C of the firebox a of a compound locomotive boiler has an .end portion of reduced diameter extending over the barrel d. The extension may be of the same diameter as the rest of the drum, the barrel being recessed to receive the extension. The extension may be secured to the barrel by straps or angle-irons, or the extension of the barrel may have a common wall. The water in the drum may be partly indirectly heated by the circulation of a heat-carrier in a closed circuit. The firebox may have two upper drums,
Patent GB-394930-A (GB)
Title: Improvements in or relating to fuel injection pumps for internal combustion engines
IPC: F02M59/02
Filed: 1933-03-01
Abstract: 394,930. Fuel-injection pumps. BISCHOF, B., 16, Tobelstrasse, Waldheim, Winterthur, Switzerland. March 1, 1933, No. 6212. Convention date, March 15, 1932. [Class 102 (i).] In a fuel-injection pump, of the type in which the discharge is effected by an accumulator piston b and takes place through a passage h and recess k in the piston, in order to avoid fluctuations in pressure the control edge f of the recess is arranged to effect a gradual opening of the discharge d. -For this purpose the upper end of the recess k may be coned, as shown, or the pump barrel may be fitted with a liner having a flaring mouth level with the discharge passage d.